Fluent material handling – with receiver or receiver coacting mea – With signal – indicator – recorder – inspection means or exhibitor – Level or pressure in receiver
Patent
1992-06-15
1993-09-21
Cusick, Ernest G.
Fluent material handling, with receiver or receiver coacting mea
With signal, indicator, recorder, inspection means or exhibitor
Level or pressure in receiver
141 98, 141DIG1, 141198, 141 65, 141 83, 141219, 62492, 137429, 141 83, 141219, B65B 304
Patent
active
052460452
ABSTRACT:
The present invention is an automatic volume fill control apparatus to be used in conjunction with a recovering device which is operable upon being electrically connected to an electrical power source. The automatic control apparatus comprises a control unit electrically interconnected between the electrical power source and the recovering device. The control unit has an electrical circuit which includes an electrical relay switch and connects with a float switch installed in a recovered refrigerant tank. The float switch is normally closed when the refrigerant tank is less than 80% filled, which causes the relay switch to be closed to establish electrical connection between the power source and the recovering device, so the filling of the refrigerant tank continues. When the refrigerant in the tank reaches 80% in volume, the float switch will be opened, which causes the relay switch to open to cut-off the electrical connection between the power source and the recovering device, so the filling process stops. This ensures the safety of the refrigerant recovering and recycling process.
REFERENCES:
patent: 4360038 (1982-11-01), Trinkwalder, Jr.
patent: 4483367 (1984-11-01), Ross, Jr. et al.
patent: 4557300 (1985-12-01), Jernberg
patent: 4744222 (1988-05-01), Murai
patent: 4887857 (1989-12-01), VanOmmeren
patent: 4958665 (1990-09-01), Iwano
Clothier Donald A.
Richtenburg Donald C.
Chen Dong
Clothier & Rose, Inc.
Cusick Ernest G.
Rozsa Thomas I.
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